US1293712A - Hydrocarbon-motor. - Google Patents

Description

Patented Feb. 11, 1919.

3 SHEETS-SHEET L H. D. CHURCH.

HYDROCARBON MOTOR.

APPLICATION FILED SEPT. 13. 1915- 1,293,712.

H. D. CHURCH.

HYDHOCARBON MOTOR.

APPLICATION FILED SEPT. 13. I915.

Patented Feb. 11, 1919.

3 SHEETSSHEET 2.

LQQSQHQQ H. D. CHURCH.

HYDHOCARBON MOTOR.

APPLICATION ELLEDVSEPT. 13. I9l5.

1,293,712. I Patented Feb. 11, 1919.

3 SHEETSSHEET 3.

suitab e gearing is arranged PAENT @FFECE.

MOLD D. CHURCH, OF DETROIT, MICHIGAN, ASSIGNOR T0 PACKARD MOTOR CAR comm, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

HYDROCARBON-MOTOR.

Specification of Letters Patent.

Patented Feb. 11, 1919.

Applimtion filed September 13, 1915. Serial No. 50,400.

T 0 all whom it may concern:

Be it known that I, HAROLD D. CHURCH. a citizen of the United States, and resident of Detroit, \Vayne county. State of Michian, have invented certain new and useful improvements in- Hydrocarbon-Motors. of which the following is a specification.

This invention relates to hydrocarbon motors, and particularly to multi-cylinder motors having two sets of cylinders arranged in V form.

One of the objects of the present invention is to provide a motor of the above description with accessible valves and valve mechanism of simple construction. With this and other objects in view, the invention consists of the novel combination of'elements hereinafter described more in detail.

It will be understood that the forms of the invention which are shown and described herein are illustrative only. and that changes and modifications maybe made without departing from the spirit or scope of the invention.

The above referred to and other objects and advantages of the invention will appear from the following description taken in connection with the drawings which form a part of this specification, and in which Figure 1 is a transverse vertical section of a hydrocarbon motor embodying my invention;

Fig. 2 is a plan view of the motor shown in Fig. 1 with certain parts broken away to illustrate the valve mechanism;

Fig. 3 is a view similar to- Fig. 1 with one of the cylinder blocks however, shown in elevation instead of in section and illustrating another form of the valve mechanism;

Fig. 4 is a fragmentary view, and is a vertical section ap roximately on the line H of Fig. 3; anti Fig. 5 is a lan view of the middle part of the motor 5 own in Fig. 3, with the rock arms in section.

Referring to the'drawings, 10 represents the base or crank case of a hydrocarbon motor, the lower half 11 of which forms an oil well. Arms 12 are provided for supporting the motor upon a vehicle frame. The motor crank shaft 13 is supported in bearin 14 in the crank case 10 and through to drive the cam shaft 15, which is shown directly above and parallel to the crank shaft 13.

The motor illustrated herein has twelve cylinders formed in two castings or blocks of six each. These cylinder blocks 16 are mounted upon the crank case 10 in V form, and as shown, they are approximately 60 apart. Each of the cylinders 16 is waterjacketed, and each has its piston 17 and connecting rod 18, the big end 19 of the latter forming a hearing about one of the cranks of the crank shaft 13, and the smaller end being pivoted to the piston by the piston pin 20. Each of the cylinders also is formed with a combustion space 21. having a vertically extended branch or valve pocket 22. The outside of this valve pocket is closed w by two caps 23 and 21, and upon the inner sldes are intake and exhaust ports 25 and 26 respectively. The cap or plug 23, which is-opposite the intake port 25. 1s provided with a suitable-threaded seat for the spark plug 27. while the cap 24 opposite the exhaust port 26 is solid, as shown particularly in Figs. 1 and 2, Ignition wires 28 supply current to the spark plugs 27.

The motor inlet valves 29' and exhaust valves 30 are preferably of the puppet type,

and they are adapted to respectively controlv the ports 25 and 26 above referred to. As shown, these valves have their stems approaching each other from opposite cylinder blocks. all being arranged in the same horizontal plane. Valve guides 31 are provided and, springs 32 yieldingly hold the valves to thelr seats.

It will be observed that this arrangement "of the valves makes them extremely accessible, and the withdrawal of the plugs 23 and 24 gives access to the valve heads and valve seats, which latter are in a most convenient position for grinding.

Each of the c lin er blocks 16 is formed with an intake eader or manifold 33, and these manifolds are supplied by a carburetor 34 and intake pipe 35, with which they connect. The arrangement of the intake ports 25 with relation to these manifolds 33 is clearly shown in the sectional view of the right hand cylinders in Fig. 1. Also, the connection between the inta e pipe 35 and the manifold 33 comprising channel 35' is clearly illustrated at the right hand side of Fig. 3 of the drawings, that part of the cylinder blocks, and the upper part of this in V form as shown, provides a somewhat elongated triangular space between the space 36 is provided with'a cover 37 whereby all of the mechanism in the space is housed and kept free from dust or dirt.

Valve actuating mechanism is arranged in this space 36 in the form of rocker arms 38, one of which is provided. for each of the valves. These rocker arms are journaled upon ashaft or bar 39, which is mounted in brackets 40 and is arranged parallel to and directly above the cam shaft 15. The lower ends of the rock arms 38 are provided with rollers 41 and are arranged in operative relation with the cams on the cam shaft 15, while the upper ends of said rock arms 38 are provided with adjusting bolts 42 which act directly upon the ends of the valve stems. Openings 43 are provided in the up per part of the crank case 10 for the lower ends of the rock arms 38, this construction permitting of the cam shaft 15 being mounted directly inside of the crank case.

In the construction shown in Fig. 3, the upper part of the crank case 10 is formed with a slight longitudinal depression 44 in which the cam shaft 15 operates. This is probably best illustrated in Fig. 4 where one of the bearings 45 for the cam shaft 15 is also shown. In said figure also, the driving gears 46 and 47 and the chain 48 are illustrated. These gears produce the two-to-one driving relation between the crank shaft 13 and the cam shaft 15. I

It will be understood that the crank case and cylinder parts which are not particularly described in Figs. 3, 4 and 5, are the same as those illustrated in Fig. 1. In the form of the motor shown in Fig. 3 however, besides having the cam shaft mounted outside of the crank case, there is a somewhat difi'erent form of support for the rock arms 38. These rock arms 38 are of substantially the same form as shown in Fig. 1, but they are journaled upon a shaft or bar 49 which is of tubular form, and this shaft is supported in a single bracket 50 which runs the length of the motor and is detachably supported upon the crank case 10 as by the bolts 51. Thus, the bracket 50, the shaft 49 and the rock arms 38 may be removed from the motor as a unit.

Further, it will be seen that the bracket 50 is in the form of a casing and not onlv closes in the cam shaft 15, but also has side walls 52 extending somewhat above the shaft- 49 and forming a trough for the journals or bearings 53 of the rock arms 38. A drain hole 54arranged at a suitable height in the trough 52 carries the surplus oil from the trough into the lower part of the casing or bracket 50. Said bracket is also provided with another drain 55 at a suitable height above the cam shaft 15 so that the latter ma run in oil and the surplus may drain bac into the crank case 10.

Oil may be fed from the lower part of the crank case 10 to the crank shaft 13 in any well-known manner, and from the crank shaft bearing 56 shown particularly in Fig.

4 some of this oil is led through a passage 57 to the bearin 45 of the cam shaft 15. At this point, t e cam shaft is provided with an annular groove 58, which supplies the bearing 45 and which also carries some of the oil to the passage 59 which leads to the end of the shaft 49 and hence the lubricant is led into the interior of said shaft. Suitable openings 60 in the shaft 49 feed the oil to the various journals 53 of the rock arms 38, and some of the oil leaks through those bearings into the trough 52.

From the above, it will be seen that a particularly eflicient oiling system is provided for the various journals of the rock arms 38 and the cam shaft 15, the latter running in a bath of oil.

Having thus described my invention, what I claim and desire to secure by Letters'Patent is 1. In a hydrocarbon motor, in combination, two sets of cylinders arranged in V form, valves for the cylinders, a camshaft arranged between said cylinder sets, a bracket extending lengthwise of the motor above the cam shaft, and rock arms extending between the cam shaft and the valves and supported entirely by said bracket.

2. In a hydrocarbon motor, in combination, two sets of cylinders arranged in V form, valves for the cylinders having their stems approaching each other between the sets of cylinders, a cam shaft arranged between said cylinder sets, a bracket extending lengthwise of the motor above the cam shaft, and rock arms mounted in said bracket and operated by the cam shaft for actuating the valves, said bracket having a trough formed around the bearings of said rock arms. 3. In a hydrocarbon motor, in combination, two sets of cylinders arranged in V form, valves for the cylinders having their stems approaching each other between the sets of cylinders, a cam shaft arranged between said cylinder sets, a bracket extending lengthwise of the motor above the cam shaft, a tubular shaft rigidly supported in said bracket, rock arms mounted in bearings on said tubular shaft, and means for feeding oil to said bearings through said tubular shaft.

4. In a hydrocarbon motor in combination two sets of cylinders arranged in V form, valves for the cylinders having their stems approaching each other between said cylinder sets, a cam shaft arranged between said cylinder sets, a bracket removably mounted on thecrank case between the cylinder sets and extending lengthwise of the motor above the cam shaft, said bracket forming a casing for said cam shaft, rock arms extending between the cam shaft and the valves and supported entirely by the bracket whereby the bracket and rock arms may be removed and replaced as a unit.

5. In a hydrocarbon motor, in combination two sets of cylinders in V form, valves for the cylinders having their stems approaching each other between the sets of cylinders, a cam shaft arranged between said cylinder sets, a bracket extending lengthwise of the motorbetween the cylinder sets above the cam shaft and forming a casin therefor, and rock arms mounted in said Eracket and operated by the cam shaft for actuating the valves.

6. In a hydrocarbon motor, in combination two sets of cylinders in V form, valves for the cylinders having their stems approaching each other between the sets of cylinders, a cam shaft arranged between 7 In a hydrocarbon motor, in coinbination two sets of cylinders in V form, valves for the cylinders having their stems approaching each other between the sets of cylinders, a cam shaft arranged between said cylinder sets, a bracket extending lengthwiseof the motor between the cylinder sets above the cam shaft and forming a casing therefor, valve actuating rock arms mounted in bearings in said bracket and operated by the cam shaft, and means for feeding oil to said bearings.

In testimony whereof I affix my signature.

HAROLD D. CHURCH.

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